'''Ibidem''' was a science fiction fanzine by P. Howard Lyons and Pat Lyons.

''Ibidem'' was published in Toronto, Ontario, Canada during the 1950s. P. Howard Lyons was a member of "The Derelicts", a group of science fiction fans associated with the fanzine [[Canadian Fandom]].

''Ibidem'' was published in Toronto, Ontario, Canada during the 1950s. P. Howard Lyons was a member of "The Derelicts", a group of science fiction fans associated with the fanzine [[Canadian Fandom]].

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Buy issue three, the editorship of ''Ibidem'' is credited to Howard Lyons and Pat Lyons. Pat Lyons is also known as the artist Pat Patterson, whose artwork can be seen in many of the fanzines of this period of the 1950s, including [[A Bas]], [[Canadian Fandom]] and [[Inside and Science Fiction Advertiser]].

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Pat Lyons is also known as the artist [[Pat Patterson]], whose artwork can be seen in many of the fanzines of this period of the 1950s, including [[A Bas]], [[Canadian Fandom]] and [[Inside and Science Fiction Advertiser]].

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''Ibidem'' was distributed by the Canadian Amateur Fan Publishers.

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''Ibidem'' was distributed by the Canadian Amateur Fan Publishers, and issue 3 by the [[Offtrails Magazine Publishers Association]]. Six issues were published.

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''Ibidem'' was also the title of a fanzine by P. Howard Lyons that he began publishing at the same but that ran for much longer, having to do with stage magic.

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''Ibidem'' was also the title of a fanzine by P. Howard Lyons that he began publishing at the same time, but that ran for much longer, having to do with stage magic.